Hondarribia is Unai Emery’s stunningly picturesque hometown and you do not need long speaking with residents to discover that most of the 16,000 population became overnight Arsenal fans on the day that a first new coach for almost a quarter of a century was confirmed.

Jose-Maria Olazabal is a second sporting celebrity to call this most northern seaside Spanish town home but, with Emery’s mum Amelia, brothers Koldo, Andoni and Igor still in residence, as well as numerous other relations...